Calculate Your Cycle Ovulation

How to calculate your next period ovulation infographic.

Calculate your cycle ovulation. Understanding the menstrual cycle properly. While you may already have a fair understanding of your own menstrual cycle there are women who have cycle lengths that vary. If your cycle is 28 days long your next period should start 28 days from the first day of your last period. This calculator gives approximate ovulation dates and fertile times for women who have regular periods.

This ovulation calculator provides an estimate of your fertile window and is not a guarantee of pregnancy or of birth control. Talk to your doctor or nurse to plan for pregnancy and find birth control that works for you. Once you have at least 8 months charted subtract 18 from the number of days in your shortest period to get your first fertile day in each cycle. Menstrual periods are different from woman to woman and month to month.

The length of your menstrual cycle is the number of days from the first day of bleeding in your last period to the first day of bleeding in your next. Enter the first day of your last few menstrual periods to view your shortest and longest cycles and to calculate your average cycle length and most common cycle length. Ovulation occurs once each month usually in the middle of the cycle. Our calculator can help you discover the most fertile days of your menstrual cycle or your estimated fertility window based on the information you provide.

The calculator and information on this website are not medical advice. The more dates you enter the more accurate the results will be. By learning when you ovulate you can predict when you re likely to be fertile. Once you have your average cycle length you can use this number in the.

A woman is able to become pregnant fertile only during a certain part of her monthly cycle. Ovulation occurs 12 to 16 days before the next expected period. To calculate your fertile window you need to determine what day you ovulate. That is just before and during ovulation.

Use this calculator to see when you may be ovulating to help find your most fertile days. Use our free ovulation calendar above as a guide to help you track your ovulation. When are you most fertile. To calculate your ovulation by tracking your cervical mucus keep a calendar and track your period and the length of time between each period for 8 12 months.

Some people also refer to this as an ovulation calculator. First we estimate when you ll ovulate by counting back 14 days from the day you expect your next period. To do this you need to know the length of your menstrual cycle which tends to vary from 23 to 35 days. To calculate the timing for you you must know your cycle length and luteal phase length.